#include<iostream>
int main(){
std::cout<<" Enter two numbers: "<<std::endl;
    int v1=0,v2=0;
    std::cin >> v1 >> v2;//读取数值
    std::cout<<v1<<" * " <<v2<<" = "<<v1*v2<<std::endl;
    return 0;
int sum=0,val=1;
    while (val<=10){
        sum+=val;
        ++val; 
    }
    std::cout<<"Sum of 1 to 10 inclucive is "<<sum<<std::endl;
    return 0;
int sum=0,val=50;
    while (val<=100){
        sum+=val;
        ++val;
    }
    std::cout<<"Sum of 50 to 100 inclucive is "<<sum<<std::endl;
    return 0;*/
    /*int i=10;
    while (i>=1){
        std::cout<<i<<std::endl;
        --i;
    }
    return 0;
std::cout<<" Enter two numbers:"<<std::endl;
    int v1=0,v2=0,i=0;
    std::cin>>v1>>v2;
    if(v1>=v2){i=v2;
        while (i<=v1 && i>=v2){
        std::cout<<i<<std::endl;
        ++i;}}
    else{
        i=v1;
        while(i>=v1 && i<=v2){
        std::cout<<i<<std::endl;
        ++i;}
    }
    return 0;
int sum=0,value=0;
    while (std::cin >> value)
        sum+=value;
    std::cout <<"Sum is:"<<sum<<std::endl;
    return 0;
}
原文:http://www.cnblogs.com/jianwei2016/p/5876813.html